By Brooks Morse // 2020-08-10
Retention ponds or wet ponds are basins that maintain a pool of water throughout the year and hold stormwater runoff. These ponds fluctuate in response to rain events and runoff from adjacent areas. Because retention ponds hold water for a longer period of time than a detention pond, it allows the smaller pollutants like fine sediments to settle to the bottom of the pond before entering another waterway. You will see retention ponds constructed in areas that have a high groundwater table and isn’t feasible for a detention pond.